User Account Control (UAC)
UAC is a security feature in Windows® and Windows® Server versions and is enabled by default.
If a program requires privilege elevation, the behavior is the following:
• For administrators: Prompt for consent. A dialog is shown where either Continue or Cancel can be selected. In Windows® Server edition, value Prompt for consent for non-Windows® binaries is used.
• For standard users: A message box stating that a program has been blocked is shown.
A shield is used in the program icon to indicate that it requires administrative privileges to run. This is automatically detected by the operating system if, for example, “run as” administrator flag is set in the file properties or if the program has previously asked for administrative privileges.